ltt/branches/poly/ltt/convert/convert.c

   1 #include <stdio.h>
   2 #include <fcntl.h>
   3 #include <sys/stat.h>
   4 #include <sys/types.h>
   5 #include <linux/errno.h>
   6
   7 #include <glib.h>
   8 #include "LTTTypes.h"
   9 #include "LinuxEvents.h"
  10
  11 #define TRACE_HEARTBEAT_ID  19
  12 #define PROCESS_FORK_ID     20
  13 #define PROCESS_EXIT_ID     21
  14
  15 #define INFO_ENTRY          9
  16 #define OVERFLOW_FIGURE     4294967296
  17
  18 typedef struct _new_process
  19 {
  20   uint32_t  event_data1;     /* Data associated with event */
  21   uint32_t  event_data2;
  22 } LTT_PACKED_STRUCT new_process;
  23
  24 #define write_to_buffer(DEST, SRC, SIZE) \
  25 do\
  26 {\
  27    memcpy(DEST, SRC, SIZE);\
  28    DEST += SIZE;\
  29 } while(0);
  30
  31 int readFile(int fd, void * buf, size_t size, char * mesg)
  32 {
  33    ssize_t nbBytes;
  34    nbBytes = read(fd, buf, size);
  35    if(nbBytes != size){
  36      printf("%s\n",mesg);
  37      exit(1);
  38    }
  39    return 0;
  40 }
  41
  42 void getDataEndianType(char * size, char * endian)
  43 {
  44   int i = 1;
  45   char c = (char) i;
  46   int sizeInt=sizeof(int), sizeLong=sizeof(long), sizePointer=sizeof(void *);
  47
  48   if(c == 1) strcpy(endian,"LITTLE_ENDIAN");
  49   else strcpy(endian, "BIG_ENDIAN");
  50
  51   if(sizeInt == 2 && sizeLong == 4 && sizePointer == 4)
  52     strcpy(size,"LP32");
  53   else if(sizeInt == 4 && sizeLong == 4 && sizePointer == 4)
  54     strcpy(size,"ILP32");
  55   else if(sizeInt == 4 && sizeLong == 8 && sizePointer == 8)
  56     strcpy(size,"LP64");
  57   else if(sizeInt == 8 && sizeLong == 8 && sizePointer == 8)
  58     strcpy(size,"ILP64");
  59   else strcpy(size,"UNKNOWN");
  60 }
  61
  62 #define BUFFER_SIZE 80
  63
  64 typedef struct _buffer_start{
  65   uint32_t seconds;
  66   uint32_t nanoseconds;
  67   uint64_t cycle_count;
  68   uint32_t block_id;
  69 } __attribute__ ((packed)) buffer_start;
  70
  71 typedef struct _heartbeat{
  72   uint32_t seconds;
  73   uint32_t nanoseconds;
  74   uint64_t cycle_count;
  75 } __attribute__ ((packed)) heartbeat;
  76
  77
  78 int main(int argc, char ** argv){
  79
  80   int fd, *fdCpu;
  81   FILE * fp;
  82   int  fdFac, fdIntr, fdProc;
  83   char arch_size[BUFFER_SIZE];
  84   char endian[BUFFER_SIZE];
  85   char node_name[BUFFER_SIZE];
  86   char domainname[BUFFER_SIZE];
  87   char kernel_name[BUFFER_SIZE];
  88   char kernel_release[BUFFER_SIZE];
  89   char kernel_version[BUFFER_SIZE];
  90   char machine[BUFFER_SIZE];
  91   char processor[BUFFER_SIZE];
  92   char hardware_platform[BUFFER_SIZE];
  93   char operating_system[BUFFER_SIZE];
  94   int  cpu;
  95   int  ltt_block_size;
  96   int  ltt_major_version;
  97   int  ltt_minor_version;
  98   int  ltt_log_cpu;
  99   char buf[BUFFER_SIZE];
 100   int i,j;
 101
 102   uint8_t cpu_id;
 103
 104   char foo[4*BUFFER_SIZE];
 105   char foo_eventdefs[4*BUFFER_SIZE];
 106   char foo_control[4*BUFFER_SIZE];
 107   char foo_cpu[4*BUFFER_SIZE];
 108   char foo_info[4*BUFFER_SIZE];
 109
 110   char foo_control_facilities[4*BUFFER_SIZE];
 111   char foo_control_processes[4*BUFFER_SIZE];
 112   char foo_control_interrupts[4*BUFFER_SIZE];
 113   char foo_info_system[4*BUFFER_SIZE];
 114
 115   struct stat      lTDFStat;
 116   off_t file_size;
 117   int block_number, block_size;
 118   char * buffer, **buf_out, cpuStr[4*BUFFER_SIZE];
 119   char * buf_fac, * buf_intr, * buf_proc;
 120   void ** write_pos, *write_pos_fac, * write_pos_intr, *write_pos_proc;
 121   trace_start *tStart;
 122   trace_buffer_start *tBufStart;
 123   trace_buffer_end *tBufEnd;
 124   trace_file_system * tFileSys;
 125   uint16_t newId, startId, tmpId;
 126   uint8_t  evId;
 127   uint32_t time_delta, startTimeDelta;
 128   void * cur_pos, *end_pos;
 129   buffer_start start, start_proc, start_intr;
 130   buffer_start end, end_proc, end_intr;
 131   heartbeat beat;
 132   int beat_count = 0;
 133   gboolean * has_event;
 134   uint32_t size_lost;
 135   int reserve_size = sizeof(buffer_start) + sizeof(uint16_t) + 2*sizeof(uint32_t);//lost_size and buffer_end event
 136
 137   new_process process;
 138
 139   if(argc != 4 && argc != 5){
 140     printf("need a trace file and cpu number or root directory for the new tracefile\n");
 141     exit(1);
 142   }
 143
 144   if(argc == 4){
 145     strcpy(foo, "foo");
 146     strcpy(foo_eventdefs, "foo/eventdefs");
 147     strcpy(foo_control, "foo/control");
 148     strcpy(foo_cpu, "foo/cpu");
 149     strcpy(foo_info, "foo/info");
 150   }else{
 151     strcpy(foo, argv[4]);
 152     strcpy(foo_eventdefs, argv[4]);
 153     strcat(foo_eventdefs,"/eventdefs");
 154     strcpy(foo_control, argv[4]);
 155     strcat(foo_control,"/control");
 156     strcpy(foo_cpu, argv[4]);
 157     strcat(foo_cpu,"/cpu");
 158     strcpy(foo_info, argv[4]);
 159     strcat(foo_info,"/info");
 160   }
 161   strcpy(foo_control_facilities, foo_control);
 162   strcat(foo_control_facilities,"/facilities");
 163   strcpy(foo_control_processes, foo_control);
 164   strcat(foo_control_processes, "/processes");
 165   strcpy(foo_control_interrupts, foo_control);
 166   strcat(foo_control_interrupts, "/interrupts");
 167   strcpy(foo_info_system, foo_info);
 168   strcat(foo_info_system, "/system.xml");
 169
 170   cpu = atoi(argv[3]);
 171   printf("cpu number = %d\n", cpu);
 172
 173
 174   getDataEndianType(arch_size, endian);
 175   printf("Arch_size: %s,  Endian: %s\n", arch_size, endian);
 176
 177   fp = fopen("sysInfo.out","r");
 178   if(!fp){
 179     g_error("Unable to open file sysInfo.out\n");
 180   }
 181
 182   for(i=0;i<INFO_ENTRY;i++){
 183     if(!fgets(buf,BUFFER_SIZE-1,fp))
 184       g_error("The format of sysInfo.out is not right\n");
 185     if(strncmp(buf,"node_name=",10)==0){
 186       strcpy(node_name,&buf[10]);
 187       node_name[strlen(node_name)-1] = '\0';
 188     }else if(strncmp(buf,"domainname=",11)==0){
 189       strcpy(domainname,&buf[11]);
 190       domainname[strlen(domainname)-1] = '\0';
 191     }else if(strncmp(buf,"kernel_name=",12)==0){
 192       strcpy(kernel_name,&buf[12]);
 193       kernel_name[strlen(kernel_name)-1] = '\0';
 194     }else if(strncmp(buf,"kernel_release=",15)==0){
 195       strcpy(kernel_release,&buf[15]);
 196       kernel_release[strlen(kernel_release)-1] = '\0';
 197     }else if(strncmp(buf,"kernel_version=",15)==0){
 198       strcpy(kernel_version,&buf[15]);
 199       kernel_version[strlen(kernel_version)-1] = '\0';
 200     }else if(strncmp(buf,"machine=",8)==0){
 201       strcpy(machine,&buf[8]);
 202       machine[strlen(machine)-1] = '\0';
 203     }else if(strncmp(buf,"processor=",10)==0){
 204       strcpy(processor,&buf[10]);
 205       processor[strlen(processor)-1] = '\0';
 206     }else if(strncmp(buf,"hardware_platform=",18)==0){
 207       strcpy(hardware_platform,&buf[18]);
 208       hardware_platform[strlen(hardware_platform)-1] = '\0';
 209     }else if(strncmp(buf,"operating_system=",17)==0){
 210       strcpy(operating_system,&buf[17]);
 211       operating_system[strlen(operating_system)-1] = '\0';
 212     }
 213   }
 214   fclose(fp);
 215
 216   if(mkdir(foo, S_IFDIR | S_IRWXU | S_IRGRP |  S_IROTH))
 217     g_error("can not make %s directory", foo);
 218   if(mkdir(foo_info, S_IFDIR | S_IRWXU | S_IRGRP |  S_IROTH))
 219     g_error("can not make %s directory", foo_info);
 220   if(mkdir(foo_cpu, S_IFDIR | S_IRWXU | S_IRGRP |  S_IROTH))
 221     g_error("can not make %s directory", foo_cpu);
 222   if(mkdir(foo_control, S_IFDIR | S_IRWXU | S_IRGRP |  S_IROTH))
 223     g_error("can not make %s directory", foo_control);
 224   if(mkdir(foo_eventdefs, S_IFDIR | S_IRWXU | S_IRGRP |  S_IROTH))
 225     g_error("can not make %s directory", foo_eventdefs);
 226
 227   fp = fopen(foo_info_system,"w");
 228   if(!fp){
 229     g_error("Unable to open file system.xml\n");
 230   }
 231
 232   fd = open(argv[1], O_RDONLY, 0);
 233   if(fd < 0){
 234     g_error("Unable to open input data file %s\n", argv[1]);
 235   }
 236
 237   fdFac = open(foo_control_facilities,O_CREAT | O_RDWR | O_TRUNC,S_IRUSR |S_IWUSR | S_IRGRP | S_IROTH);
 238   if(fdFac < 0){
 239     g_error("Unable to open file facilities\n");
 240   }
 241   fdIntr = open(foo_control_interrupts,O_CREAT | O_RDWR | O_TRUNC,S_IRUSR |S_IWUSR | S_IRGRP | S_IROTH);
 242   if(fdIntr<0){
 243     g_error("Unable to open file interrupts\n");
 244   }
 245   fdProc = open(foo_control_processes,O_CREAT | O_RDWR | O_TRUNC,S_IRUSR |S_IWUSR | S_IRGRP | S_IROTH);
 246   if(fdIntr<0){
 247     g_error("Unable to open file process\n");
 248   }
 249
 250
 251
 252   if(fstat(fd, &lTDFStat) < 0){
 253     g_error("Unable to get the status of the input data file\n");
 254   }
 255   file_size = lTDFStat.st_size;
 256
 257   buffer = g_new(char, 4000);
 258   readFile(fd,(void*)buffer, 3500, "Unable to read block header");
 259
 260   cur_pos= buffer;
 261   evId = *(uint8_t *)cur_pos;
 262   cur_pos += sizeof(uint8_t);
 263   newId = evId;
 264   time_delta = *(uint32_t*)cur_pos;
 265   cur_pos += sizeof(uint32_t);
 266   tBufStart = (trace_buffer_start*)cur_pos;
 267   cur_pos += sizeof(trace_buffer_start);
 268   cur_pos += sizeof(uint16_t); //Skip event size
 269
 270   evId = *(uint8_t *)cur_pos;
 271   cur_pos += sizeof(uint8_t);
 272   cur_pos += sizeof(uint32_t);
 273   tStart = (trace_start*)cur_pos;
 274
 275   startId = newId;
 276   startTimeDelta = time_delta;
 277   start.seconds = tBufStart->Time.tv_sec;
 278   start.nanoseconds = tBufStart->Time.tv_usec;
 279   start.cycle_count = tBufStart->TSC;
 280   start.block_id = tBufStart->ID;
 281   end.block_id = start.block_id;
 282
 283   ltt_major_version = tStart->MajorVersion;
 284   ltt_minor_version = tStart->MinorVersion;
 285   ltt_block_size    = tStart->BufferSize;
 286   ltt_log_cpu       = tStart->LogCPUID;
 287
 288   block_size = ltt_block_size;
 289   block_number = file_size/block_size;
 290
 291   g_free(buffer);
 292   buffer         = g_new(char, block_size);
 293   buf_fac        = g_new(char, block_size);
 294   write_pos_fac  = buf_fac;
 295   buf_intr       = g_new(char, block_size);
 296   write_pos_intr = buf_intr;
 297   buf_proc       = g_new(char, block_size);
 298   write_pos_proc = buf_proc;
 299
 300   buf_out    = g_new(char*,cpu);
 301   write_pos  = g_new(void*, cpu);
 302   fdCpu      = g_new(int, cpu);
 303   has_event  = g_new(gboolean, cpu);
 304   for(i=0;i<cpu;i++){
 305     has_event[i] = FALSE;
 306     if(i==0)has_event[i] = TRUE;
 307     buf_out[i] = g_new(char, block_size);
 308     write_pos[i] = NULL;;
 309     sprintf(cpuStr,"%s/%d\0",foo_cpu,i);
 310     fdCpu[i] = open(cpuStr, O_CREAT | O_RDWR | O_TRUNC,S_IRUSR |S_IWUSR | S_IRGRP | S_IROTH); //for cpu i
 311     if(fdCpu[i] < 0)  g_error("Unable to open  cpu file %d\n", i);
 312   }
 313   lseek(fd,0,SEEK_SET);
 314
 315
 316   for(i=0;i<block_number;i++){
 317     int event_count = 0;
 318     beat_count = 0;
 319
 320     for(j=1;j<cpu;j++)has_event[j] = FALSE;
 321     for(j=0;j<cpu;j++){
 322       memset((void*)buf_out[j], 0, block_size);
 323       write_pos[j] = buf_out[j];
 324     }
 325     memset((void*)buf_intr, 0, block_size);
 326     memset((void*)buf_fac, 0, block_size);
 327     memset((void*)buf_proc, 0, block_size);
 328     write_pos_intr = buf_intr;
 329     write_pos_fac = buf_fac;
 330     write_pos_proc = buf_proc;
 331
 332     memset((void*)buffer,0,block_size);
 333     readFile(fd,(void*)buffer, block_size, "Unable to read block header");
 334
 335     cur_pos= buffer;
 336     evId = *(uint8_t *)cur_pos;
 337     cur_pos += sizeof(uint8_t);
 338     newId = evId;
 339     time_delta = *(uint32_t*)cur_pos;
 340     cur_pos += sizeof(uint32_t);
 341     tBufStart = (trace_buffer_start*)cur_pos;
 342     cur_pos += sizeof(trace_buffer_start);
 343     cur_pos += sizeof(uint16_t); //Skip event size
 344
 345     startId = newId;
 346     startTimeDelta = time_delta;
 347     start.seconds = tBufStart->Time.tv_sec;
 348     start.nanoseconds = tBufStart->Time.tv_usec;
 349     start.cycle_count = tBufStart->TSC;
 350     start.block_id = tBufStart->ID;
 351     end.block_id = start.block_id;
 352
 353     end_pos = buffer + block_size; //end of the buffer
 354     size_lost = *(uint32_t*)(end_pos - sizeof(uint32_t));
 355
 356     end_pos = buffer + block_size - size_lost ; //buffer_end event
 357     if(ltt_log_cpu){
 358       tBufEnd = (trace_buffer_end*)(end_pos + 2 * sizeof(uint8_t)+sizeof(uint32_t));
 359     }else{
 360       tBufEnd = (trace_buffer_end*)(end_pos+sizeof(uint8_t)+sizeof(uint32_t));
 361     }
 362     end.seconds = tBufEnd->Time.tv_sec;
 363     end.nanoseconds = tBufEnd->Time.tv_usec;
 364     end.cycle_count = tBufEnd->TSC;
 365
 366     //skip buffer start and trace start events
 367     if(i==0) //the first block
 368       cur_pos = buffer + sizeof(trace_buffer_start) + sizeof(trace_start) + 2*(sizeof(uint8_t)+sizeof(uint16_t)+sizeof(uint32_t));
 369     else //other blocks
 370       cur_pos = buffer + sizeof(trace_buffer_start) + sizeof(uint8_t)+sizeof(uint16_t)+sizeof(uint32_t);
 371
 372     //for cpu 0, always make records
 373     write_to_buffer(write_pos[0],(void*)&startId, sizeof(uint16_t));
 374     write_to_buffer(write_pos[0],(void*)&startTimeDelta, sizeof(uint32_t));
 375     write_to_buffer(write_pos[0],(void*)&start, sizeof(buffer_start));
 376
 377     //write start block event into processes and interrupts files
 378     write_to_buffer(write_pos_intr,(void*)&startId, sizeof(uint16_t));
 379     write_to_buffer(write_pos_intr,(void*)&startTimeDelta, sizeof(uint32_t));
 380     start_intr = start;
 381     start_intr.nanoseconds -= 40;
 382     write_to_buffer(write_pos_intr,(void*)&start_intr, sizeof(buffer_start));
 383
 384     write_to_buffer(write_pos_proc,(void*)&startId, sizeof(uint16_t));
 385     write_to_buffer(write_pos_proc,(void*)&startTimeDelta, sizeof(uint32_t));
 386     start_proc = start;
 387     start_proc.nanoseconds -= 20;
 388     write_to_buffer(write_pos_proc,(void*)&start_proc, sizeof(buffer_start));
 389
 390     //parse *.proc file to get process and irq info
 391     if(i == 0){
 392       int        lIntID;                 /* Interrupt ID */
 393       int        lPID, lPPID;            /* Process PID and Parent PID */
 394       char       lName[256];             /* Process name */
 395       FILE *          fProc;
 396       uint16_t        defaultId;
 397       trace_irq_entry irq;
 398
 399       fProc = fopen(argv[2],"r");
 400       if(!fProc){
 401         g_error("Unable to open file %s\n", argv[2]);
 402       }
 403
 404       while(fscanf(fProc, "PID: %d; PPID: %d; NAME: %s\n", &lPID, &lPPID, lName) > 0){
 405         defaultId = PROCESS_FORK_ID;
 406         process.event_data1 = lPID;
 407         process.event_data2 = lPPID;
 408         write_to_buffer(write_pos_proc,(void*)&defaultId, sizeof(uint16_t));
 409         write_to_buffer(write_pos_proc,(void*)&startTimeDelta, sizeof(uint32_t));
 410         write_to_buffer(write_pos_proc,(void*)&process, sizeof(new_process));
 411       }
 412
 413       while(fscanf(fProc, "IRQ: %d; NAME: ", &lIntID) > 0){
 414         /* Read 'til the end of the line */
 415         fgets(lName, 200, fProc);
 416
 417         defaultId =  TRACE_IRQ_ENTRY;
 418         irq.irq_id = lIntID;
 419         irq.kernel = 1;
 420         write_to_buffer(write_pos_intr,(void*)&defaultId, sizeof(uint16_t));
 421         write_to_buffer(write_pos_intr,(void*)&startTimeDelta, sizeof(uint32_t));
 422         write_to_buffer(write_pos_intr,(void*)&irq, sizeof(trace_irq_entry));
 423       }
 424       fclose(fProc);
 425     }
 426
 427     while(1){
 428       int event_size;
 429       uint64_t timeDelta;
 430       uint8_t  subId;
 431
 432       if(ltt_log_cpu){
 433         cpu_id = *(uint8_t*)cur_pos;
 434         cur_pos += sizeof(uint8_t);
 435         if(cpu_id != 0 && has_event[cpu_id] == FALSE){
 436           has_event[cpu_id] = TRUE;
 437           write_to_buffer(write_pos[cpu_id],(void*)&startId,sizeof(uint16_t));
 438           write_to_buffer(write_pos[cpu_id],(void*)&startTimeDelta, sizeof(uint32_t));
 439           write_to_buffer(write_pos[cpu_id],(void*)&start, sizeof(buffer_start));
 440         }
 441       }
 442       evId = *(uint8_t *)cur_pos;
 443       newId = evId;
 444       if(evId == TRACE_HEARTBEAT) {
 445         newId = TRACE_HEARTBEAT_ID;
 446       }
 447       cur_pos += sizeof(uint8_t);
 448       time_delta = *(uint32_t*)cur_pos;
 449       cur_pos += sizeof(uint32_t);
 450
 451       if(ltt_log_cpu){
 452         write_to_buffer(write_pos[cpu_id],(void*)&newId,sizeof(uint16_t));
 453         write_to_buffer(write_pos[cpu_id],(void*)&time_delta, sizeof(uint32_t));
 454       }else{
 455         write_to_buffer(write_pos[0],(void*)&newId,sizeof(uint16_t));
 456         write_to_buffer(write_pos[0],(void*)&time_delta, sizeof(uint32_t));
 457       }
 458
 459       if(evId == TRACE_BUFFER_END){
 460         if(ltt_log_cpu){
 461           int size, i;
 462           if(has_event[i])
 463             write_to_buffer(write_pos[cpu_id],(void*)&end,sizeof(buffer_start));
 464           for(i=0;i<cpu;i++){
 465             if(has_event[i]){
 466               size = block_size + ((void*)buf_out[i] - write_pos[i])+ sizeof(uint16_t) + sizeof(uint32_t);
 467               write_pos[i] = buf_out[i] + block_size - sizeof(uint32_t);
 468               write_to_buffer(write_pos[i],(void*)&size, sizeof(uint32_t));
 469               write(fdCpu[i],(void*)buf_out[i], block_size);
 470             }
 471           }
 472         }else {
 473           int size = block_size + ((void*)buf_out[0] - write_pos[0])+ sizeof(uint16_t) + sizeof(uint32_t);
 474           write_to_buffer(write_pos[0],(void*)&end,sizeof(buffer_start));
 475           write_pos[0] = buf_out[0] + block_size - sizeof(uint32_t);
 476           write_to_buffer(write_pos[0],(void*)&size, sizeof(uint32_t));
 477           write(fdCpu[0],(void*)buf_out[0], block_size);
 478         }
 479
 480         //write out processes and intrrupts files
 481         {
 482           int size_intr = block_size - (write_pos_intr - (void*)buf_intr);
 483           int size_proc = block_size - (write_pos_proc - (void*)buf_proc);
 484           write_to_buffer(write_pos_intr,(void*)&newId,sizeof(uint16_t));
 485           write_to_buffer(write_pos_intr,(void*)&time_delta, sizeof(uint32_t));
 486           end_intr = end;
 487           end_intr.nanoseconds -= 40;
 488           write_to_buffer(write_pos_intr,(void*)&end_intr,sizeof(buffer_start));
 489
 490           write_to_buffer(write_pos_proc,(void*)&newId,sizeof(uint16_t));
 491           write_to_buffer(write_pos_proc,(void*)&time_delta, sizeof(uint32_t));
 492           end_proc = end;
 493           end_proc.nanoseconds -= 20;
 494           write_to_buffer(write_pos_proc,(void*)&end_proc,sizeof(buffer_start));
 495
 496           write_pos_intr = buf_intr + block_size - sizeof(uint32_t);
 497           write_pos_proc = buf_proc + block_size - sizeof(uint32_t);
 498           write_to_buffer(write_pos_intr,(void*)&size_intr, sizeof(uint32_t));
 499           write_to_buffer(write_pos_proc,(void*)&size_proc, sizeof(uint32_t));
 500           write(fdIntr,(void*)buf_intr,block_size);
 501           write(fdProc,(void*)buf_proc,block_size);
 502         }
 503         break;
 504       }
 505
 506       event_count++;
 507       switch(evId){
 508         case TRACE_SYSCALL_ENTRY:
 509           event_size = sizeof(trace_syscall_entry);
 510           break;
 511         case TRACE_SYSCALL_EXIT:
 512           event_size = 0;
 513           break;
 514         case TRACE_TRAP_ENTRY:
 515           event_size = sizeof(trace_trap_entry);
 516           break;
 517         case TRACE_TRAP_EXIT:
 518           event_size = 0;
 519           break;
 520         case TRACE_IRQ_ENTRY:
 521           event_size = sizeof(trace_irq_entry);
 522           timeDelta = time_delta;
 523           write_to_buffer(write_pos_intr,(void*)&newId, sizeof(uint16_t));
 524           write_to_buffer(write_pos_intr,(void*)&timeDelta, sizeof(uint32_t));
 525           write_to_buffer(write_pos_intr,cur_pos, event_size);
 526           break;
 527         case TRACE_IRQ_EXIT:
 528           event_size = 0;
 529           timeDelta = time_delta;
 530           write_to_buffer(write_pos_intr,(void*)&newId, sizeof(uint16_t));
 531           write_to_buffer(write_pos_intr,(void*)&timeDelta, sizeof(uint32_t));
 532           break;
 533         case TRACE_SCHEDCHANGE:
 534           event_size = sizeof(trace_schedchange);
 535           break;
 536         case TRACE_KERNEL_TIMER:
 537           event_size = 0;
 538           break;
 539         case TRACE_SOFT_IRQ:
 540           event_size = sizeof(trace_soft_irq);
 541           //      timeDelta = time_delta;
 542           //      write_to_buffer(write_pos_intr,(void*)&newId, sizeof(uint16_t));
 543           //      write_to_buffer(write_pos_intr,(void*)&timeDelta, sizeof(uint32_t));
 544           //      write_to_buffer(write_pos_intr,cur_pos, event_size);
 545           break;
 546         case TRACE_PROCESS:
 547           event_size = sizeof(trace_process);
 548           timeDelta = time_delta;
 549           subId = *(uint8_t*)cur_pos;
 550           if(subId == TRACE_PROCESS_FORK || subId ==TRACE_PROCESS_EXIT){
 551             if( subId == TRACE_PROCESS_FORK)tmpId = PROCESS_FORK_ID;
 552             else tmpId = PROCESS_EXIT_ID;
 553             write_to_buffer(write_pos_proc,(void*)&tmpId, sizeof(uint16_t));
 554             write_to_buffer(write_pos_proc,(void*)&timeDelta, sizeof(uint32_t));
 555
 556             process = *(new_process*)(cur_pos + sizeof(uint8_t));
 557             write_to_buffer(write_pos_proc,(void*)&process, sizeof(new_process));
 558           }
 559           break;
 560         case TRACE_FILE_SYSTEM:
 561           event_size = sizeof(trace_file_system)- sizeof(char*);
 562           break;
 563         case TRACE_TIMER:
 564           event_size = sizeof(trace_timer);
 565           break;
 566         case TRACE_MEMORY:
 567           event_size = sizeof(trace_memory);
 568           break;
 569         case TRACE_SOCKET:
 570           event_size = sizeof(trace_socket);
 571           break;
 572         case TRACE_IPC:
 573           event_size = sizeof(trace_ipc);
 574           break;
 575         case TRACE_NETWORK:
 576           event_size = sizeof(trace_network);
 577           break;
 578         case TRACE_HEARTBEAT:
 579           beat_count++;
 580           beat.seconds = 0;
 581           beat.nanoseconds = 0;
 582           beat.cycle_count = start.cycle_count + beat_count * OVERFLOW_FIGURE;
 583           event_size = 0;
 584
 585           end.cycle_count += OVERFLOW_FIGURE;
 586
 587           write_to_buffer(write_pos_intr,(void*)&newId, sizeof(uint16_t));
 588           write_to_buffer(write_pos_intr,(void*)&timeDelta, sizeof(uint32_t));
 589           write_to_buffer(write_pos_intr,(void*)&beat, sizeof(heartbeat));
 590           write_to_buffer(write_pos_proc,(void*)&newId, sizeof(uint16_t));
 591           write_to_buffer(write_pos_proc,(void*)&timeDelta, sizeof(uint32_t));
 592           write_to_buffer(write_pos_proc,(void*)&beat, sizeof(heartbeat));
 593           break;
 594         default:
 595           event_size = -1;
 596           break;
 597       }
 598       if(evId != TRACE_FILE_SYSTEM && event_size >=0){
 599         if(ltt_log_cpu){
 600           write_to_buffer(write_pos[cpu_id], cur_pos, event_size);
 601         }else{
 602           write_to_buffer(write_pos[0], cur_pos, event_size);
 603         }
 604
 605         if(evId == TRACE_HEARTBEAT){
 606           if(ltt_log_cpu){
 607             write_to_buffer(write_pos[cpu_id],(void*)&beat , sizeof(heartbeat));
 608           }else{
 609             write_to_buffer(write_pos[0], (void*)&beat, sizeof(heartbeat));
 610           }
 611         }
 612
 613         cur_pos += event_size + sizeof(uint16_t); //skip data_size
 614       }else if(evId == TRACE_FILE_SYSTEM){
 615         size_t nbBytes;
 616         char  c = '\0';
 617         tFileSys = (trace_file_system*)cur_pos;
 618         subId = tFileSys->event_sub_id;
 619         if(subId == TRACE_FILE_SYSTEM_OPEN || subId == TRACE_FILE_SYSTEM_EXEC){
 620           nbBytes = tFileSys->event_data2 +1;
 621         }else nbBytes = 0;
 622
 623         if(ltt_log_cpu){
 624           write_to_buffer(write_pos[cpu_id], cur_pos, event_size);
 625           cur_pos += event_size + sizeof(char*);
 626           if(nbBytes){
 627             write_to_buffer(write_pos[cpu_id], cur_pos, nbBytes);
 628           }else{
 629             write_to_buffer(write_pos[cpu_id], (void*)&c, 1);
 630           }
 631         }else{
 632           write_to_buffer(write_pos[0], cur_pos, event_size);
 633           cur_pos += event_size + sizeof(char*);
 634           if(nbBytes){
 635             write_to_buffer(write_pos[0], cur_pos, nbBytes);
 636           }else{
 637             write_to_buffer(write_pos[0], (void*)&c, 1);
 638           }
 639         }
 640         cur_pos += nbBytes + sizeof(uint16_t); //skip data_size
 641       }else if(event_size == -1){
 642         printf("Unknown event: evId=%d, i=%d, event_count=%d\n", newId, i, event_count);
 643         exit(1);
 644       }
 645     } //end while(1)
 646
 647   }
 648
 649
 650
 651
 652
 653   //write to system.xml
 654   fprintf(fp,"<system\n");
 655   fprintf(fp,"node_name=\"%s\"\n", node_name);
 656   fprintf(fp,"domainname=\"%s\"\n", domainname);
 657   fprintf(fp,"cpu=%d\n", cpu);
 658   fprintf(fp,"arch_size=\"%s\"\n", arch_size);
 659   fprintf(fp,"endian=\"%s\"\n",endian);
 660   fprintf(fp,"kernel_name=\"%s\"\n",kernel_name);
 661   fprintf(fp,"kernel_release=\"%s\"\n",kernel_release);
 662   fprintf(fp,"kernel_version=\"%s\"\n",kernel_version);
 663   fprintf(fp,"machine=\"%s\"\n",machine);
 664   fprintf(fp,"processor=\"%s\"\n",processor);
 665   fprintf(fp,"hardware_platform=\"%s\"\n",hardware_platform);
 666   fprintf(fp,"operating_system=\"%s\"\n",operating_system);
 667   fprintf(fp,"ltt_major_version=%d\n",ltt_major_version);
 668   fprintf(fp,"ltt_minor_version=%d\n",ltt_minor_version);
 669   fprintf(fp,"ltt_block_size=%d\n",ltt_block_size);
 670   fprintf(fp,">\n");
 671   fprintf(fp,"This is just a test\n");
 672   fprintf(fp,"</system>\n");
 673   fflush(fp);
 674
 675   fclose(fp);
 676
 677   close(fdFac);
 678   close(fdIntr);
 679   close(fdProc);
 680   close(fd);
 681   for(i=0;i<cpu;i++) close(fdCpu[i]);
 682
 683 }
 684